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ETX Etc.
Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by Daniel Johnson on April 22, 2003 03:17:34 UTC |
No, I'm not saying that altazimuth mounts are best. Fork-mounted scopes can be either polar or altazimuth. Does the fork point up (altaz) or at the pole (polar)? Yes, polar mounts are the way to go for long-exposure astrophotography. The LXD55 series has one such polar mount, German Equatorial. The fork mount of the ETX can be either altazimuth or polar, depending on whether it is on a polar wedge. But the ETX just doesn't have the smooth adjustability that one needs for small corrections in guiding long exposures. It's not mechanically up to the task. It's a mount made for visual use, regardless whether it is in altaz or polar mode. The LXD55 German Equatorial--according to the S&T review--can serve, at least for beginning astrophotography. But you'll need to add a guide scope of some sort.
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